DMD Amplitude Modulation Region Segmentation
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Solution Overview
Problem
Previous techniques for generating images using Digital Micromirror Devices (DMD) systems face inefficiencies due to the need for overscan regions and artifacts caused by amplitude modulation, which reduce image generation efficiency.
Innovation Solution
A system comprising one or more light sources, a DMD system, and a controller that instructs the DMD regions to operate as active regions for image generation and amplitude modulation regions to receive transitioning light, directing it away from the image, thereby eliminating the need for overscan regions and increasing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an overscan region is used to handle amplitude modulation transitions, then artifacts are reduced, but the active imaging area is reduced and efficiency decreases
Solution Approach 1:
The DMD device is segmented into multiple regions: an active region for image generation and an amplitude modulation region for handling light transitions. This segmentation allows each region to perform its specific function without interfering with the other, eliminating artifacts while maintaining full active imaging area.
Solution Approach 2:
The amplitude modulation function is extracted from the active imaging region and placed in a dedicated amplitude modulation region. This extraction eliminates the need for overscan areas, as the modulation region is specifically designed to handle transition light that would otherwise create artifacts in the active region.
2Device complexity
If the DMD regions are fixed in function, then the system is simpler, but the ability to optimize for different imaging conditions is reduced
Solution Approach 1:
The system employs dynamic control of DMD regions, where the amplitude modulation region can be programmatically configured in size and shape according to different imaging conditions. This dynamic adaptability allows optimization for various applications without increasing physical device complexity.
Solution Approach 2:
The size and shape parameters of the amplitude modulation region can be changed through software control, allowing the system to adapt to different imaging conditions. This parameter-based configurability provides versatility without requiring physical modifications to the device structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances image generation efficiency by eliminating artifacts and allowing for configurable size and shape of the amplitude modulation region, improving the overall performance of the DMD system.
Implementation Method 1
A light source is configured to generate light
Implementation Method 2
A DMD chip typically includes an array of micromirrors that move to manipulate light
Data Source
AI summary
According to particular embodiments, a system comprises one or mores light sources, a Digital Micromirror Device (DMD) system, and a controller. A light source is configured to generate light, and the DMD system comprises DMD regions configured to modulate the light. The controller is configured to repeat the following for a number of iterations: instruct each light source to scroll the light across the DMD system at a current amplitude level; instruct one or more DMD regions to operate as one or more active regions that modulate a first portion of the light to generate an image; and instruct the remaining DMD regions to operate as an amplitude modulation region that receives a second portion of the light, the second portion of the light transitioning from a previous amplitude level to the current amplitude level.